MARA Holdings (MARA) CEO has 40,497 shares withheld for taxes

Rhea-AI Filing Summary

MARA Holdings, Inc. Chief Executive Officer Frederick G. Thiel reported a tax-withholding disposition of 40,497 shares of common stock on July 30, 2026, at $11.82 per share, to cover taxes on vested restricted stock units. Following this withholding, he directly holds 4,430,906 shares. The shares were not sold in the open market.

Insider Trade Summary

Net Seller: 40,497 shares

Net Sell 1 txn

Insider Thiel Frederick G

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	40,497	$11.82	$479K

Holdings After Transaction: Common Stock — 4,430,906 shares (Direct)

Footnotes (1)

1. F1. Reflects shares of the issuer's common stock withheld to cover the reporting person's tax liability in connection with the vesting of restricted stock units. This transaction was not an open market sale by the reporting person.

Key Figures

Shares withheld for taxes: 40,497 shares Withholding reference price: $11.82 per share Shares owned after transaction: 4,430,906 shares +1 more

4 metrics

Shares withheld for taxes 40,497 shares Common stock withheld on July 30, 2026 to cover tax liability on RSU vesting

Withholding reference price $11.82 per share Value used for tax-withholding disposition of common stock

Shares owned after transaction 4,430,906 shares Direct common stock holdings of CEO Frederick G. Thiel following the withholding

Tax-withholding transactions reported 1 transaction Single Form 4 transaction with code F for tax liability

Key Terms

restricted stock units, withheld to cover the reporting person's tax liability, open market sale

3 terms

restricted stock units financial

"in connection with the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

withheld to cover the reporting person's tax liability financial

"Reflects shares ... withheld to cover the reporting person's tax liability"

open market sale financial

"This transaction was not an open market sale by the reporting person"

An open market sale is when a company or a shareholder sells shares through the regular stock market to any willing buyer, using ordinary exchange trading rather than private deals. It matters to investors because it increases the number of shares available and can push the price down or change ownership balance—think of it like someone putting extra items on a supermarket shelf for any shopper to buy, which can lower the item's price if supply suddenly grows.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/03/2026 - 07:00 PM Accepted by SEC EDGAR 08/03/2026 - 07:00 PM Learn about SEC filing dates

FAQ

What insider transaction did MARA (MARA) report for July 30, 2026?

MARA reported its CEO, Frederick G. Thiel, had 40,497 common shares withheld at $11.82 per share to cover taxes on vested restricted stock units, leaving him with 4,430,906 shares owned directly after the transaction.

Was the MARA (MARA) CEO transaction an open market sale?

No. The filing states the 40,497 MARA Holdings shares were withheld to cover tax liability from restricted stock unit vesting and that the transaction was not an open market sale by CEO Frederick G. Thiel.

How many MARA (MARA) shares does CEO Frederick Thiel own after this Form 4?

After the tax-withholding transaction, CEO Frederick G. Thiel directly owns 4,430,906 shares of MARA Holdings common stock, as reported in the Form 4 following the withholding of 40,497 shares for tax purposes.

What price per share was used in the MARA (MARA) tax withholding?

The tax-withholding disposition used a reference value of $11.82 per share for the 40,497 MARA Holdings common shares withheld to satisfy CEO Frederick G. Thiel’s tax liability on restricted stock unit vesting.

Does MARA (MARA) indicate a Rule 10b5-1 plan for this CEO transaction?

The structured data shows the Rule 10b5-1 checkbox is not marked as affirming that this transaction was made under a Rule 10b5-1 trading plan; the filing instead describes it as shares withheld for tax liability on RSU vesting.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Thiel Frederick G

(Last) (First) (Middle)

C/O MARA HOLDINGS, INC.

1010 SOUTH FEDERAL HIGHWAY, SUITE 2700

(Street)

HALLANDALE BEACH FLORIDA 33009

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MARA Holdings, Inc. [ MARA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/30/2026		F		40,497(1)	D	$11.82	4,430,906	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects shares of the issuer's common stock withheld to cover the reporting person's tax liability in connection with the vesting of restricted stock units. This transaction was not an open market sale by the reporting person.

	/s/ Zabi Nowaid, Attorney-in-Fact for Fred Thiel	08/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)